Collecting quantitative experimental data from a non-WEIRD population: challenges and practical recommendations from a field experiment in rural Sierra Leone
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ABSTRACT: Objective
Standardized pretest–posttest experimental designs with quantitative surveys are frequently applied to evaluate the effectiveness of health programs. However, this method is strongly informed by research on samples from Western, Educated, Industralized, Rich, and Democratic (WEIRD) societies and may not produce meaningful results in a distinct cultural, educational and socioeconomic context. Results
This paper reports several methodological challenges encountered along the research process of collecting quantitative survey data (i.e., during recruitment, obtaining informed consent, matching pretest–posttest data and data collection) for a mixed-methods field experiment on domestic handwashing in Sierra Leone. Ethical dilemmas of certain research practices are pointed out and potential solutions or alternatives are recommended for each challenge. Analysis of these challenges highlights the importance of reflecting on the aptness of research methodologies for non-WEIRD samples. While this is not to say that quantitative surveys are not suitable in a non-WEIRD context, their employment require considerable time for extensive pilot testing, involving local interviewers and participants in designing research projects and the modification of data collection strategies. Supplementary Information
The online version contains supplementary material available at 10.1186/s13104-021-05828-w.
SUBMITTER: Luetke Lanfer H
PROVIDER: S-EPMC8597296 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:BackgroundLymphatic filariasis (LF) is targeted for elimination in Sierra Leone. Epidemiological coverage of mass drug administration (MDA) with ivermectin and albendazole had been reported >65% in all 12 districts annually. Eight districts qualified to implement transmission assessment survey (TAS) in 2013 but were deferred until 2017 due to the Ebola outbreak (2014-2016). In 2017, four districts qualified for conducting a repeat pre-TAS after completing three more rounds of MDA and the final two districts were also eligible to implement a pre-TAS.Methodology/principal findingsFor TAS, eight districts were surveyed as four evaluation units (EU). A school-based survey was conducted in children aged 6-7 years from 30 clusters per EU. For pre-TAS, one sentinel and one spot check site per district (with 2 spot check sites in Bombali) were selected and 300-350 persons aged 5 years and above were selected. For both surveys, finger prick blood samples were tested using the Filariasis Test Strips (FTS). For TAS, 7,143 children aged 6-7 years were surveyed across four EUs, and positives were found in three EUs, all below the critical cut-off value for each EU. For the repeat pre-TAS/pre-TAS, 3,994 persons over five years of age were surveyed. The Western Area Urban had FTS prevalence of 0.7% in two sites and qualified for TAS, while other five districts had sites with antigenemia prevalence >2%: 9.1-25.9% in Bombali, 7.5-19.4% in Koinadugu, 6.1-2.9% in Kailahun, 1.3-2.3% in Kenema and 1.7% - 3.7% in Western Area Rural.Conclusions/significanceEight districts in Sierra Leone have successfully passed TAS1 and stopped MDA, with one more district qualified for conducting TAS1, a significant progress towards LF elimination. However, great challenges exist in eliminating LF from the whole country with repeated failure of pre-TAS in border districts. Effort needs to be intensified to achieve LF elimination.
| S-EPMC7793261 | biostudies-literature
Project description:ObjectivesUnderstanding the rural-urban context-specific correlates of skilled birth attendance (SBA) is important to designing relevant strategies and programmes. This analysis aimed to assess for the rural-urban correlates of SBA in Sierra Leone.SettingThe latest nationally representative Sierra Leone Demographic and Health Survey of 2019.ParticipantsThe study included a weighted sample of 7326 women aged 15-49 years. Each of them had a live birth within 5 years prior to the survey (4531 in rural areas and 2795 women in urban areas).Primary and secondary outcome measureSBA (primary) and predictors of SBA (secondary).ResultsSBA was higher in urban areas at 94.9% (95% CI 94.1% to 95.7%) compared with 84.2% (95% CI 83.8% to 85.9%) in rural areas. Rural women resident in the Southern, Northern and Eastern regions, with postprimary education (adjusted OR (aOR) 1.8; 95% CI 1.3 to 2.5), exposure to mass media (aOR 1.5; 95% CI 1.1 to 1.9), not having difficulties with distance to the nearest health facility (aOR 2.3; 95% CI 1.7 to 3.0) were associated with higher odds of SBA. Urban women resident in the Southern, Eastern region, with households having less than seven members (aOR 1.5; 95% CI 1.1 to 2.3), exposure to mass media (aOR 1.8; 95% CI 1.1 to 2.9) and not having difficulties with distance to the nearest health facility (aOR 1.6; 95% CI 1.1 to 2.5) were associated with higher odds of SBA.ConclusionGiven the observed differences, improving SBA requires programmes and strategies that are context-specific.
| S-EPMC8961150 | biostudies-literature
Project description:Introduction:Non-communicable diseases (NCDs) are the leading cause of mortality globally. In Africa, they are expected to increase by 25% by 2030. However, very little is known about community perceptions of risk factors and factors influencing health-seeking behaviour, especially in fragile settings. Understanding these is critical to effectively address this epidemic, especially in low-resource settings. Methods:We use participatory group model building techniques to probe knowledge and perceptions of NCD conditions and their causes, health-seeking patterns for NCDs and factors affecting these health-seeking patterns. Our participants were 116 local leaders and community members in three sites in Western Area (urban) and Bombali District (rural), Sierra Leone. Data were analysed using a prior framework for NCD care seeking developed in Ghana. Results:Our findings suggest adequate basic knowledge of causes and symptoms of the common NCDs, in rural and urban areas, although there is a tendency to highlight and react to severe symptoms. Urban and rural communities have access to a complex network of formal and informal, traditional and biomedical, spiritual and secular health providers. We highlight multiple narratives of causal factors which community members can hold, and how these and social networks influence their care seeking. Care seeking is influenced by a number of factors, including supply-side factors (proximity and cost), previous experiences of care, disease-specific factors, such as acute presentation, and personal and community beliefs about the appropriateness of different strategies. Conclusion:This article adds to the limited literature on community understanding of NCDs and its associated health-seeking behaviour in fragile settings. It is important to further elucidate these factors, which power hybrid journeys including non-care seeking, failure to prevent and self-manage effectively, and considerable expenditure for households, in order to improve prevention and management of NCDs in fragile settings such as Sierra Leone.
| S-EPMC7053783 | biostudies-literature
Project description: Not available
| S-EPMC3310113 | biostudies-literature
Project description:BACKGROUND:In August 2014, the National Institute for Communicable Diseases (NICD) in South Africa established a modular high-biosafety field Ebola diagnostic laboratory (SA FEDL) near Freetown, Sierra Leone in response to the rapidly increasing number of Ebola virus disease (EVD) cases. METHODS AND FINDINGS:The SA FEDL operated in the Western Area of Sierra Leone, which remained a "hotspot" of the EVD epidemic for months. The FEDL was the only diagnostic capacity available to respond to the overwhelming demand for rapid EVD laboratory diagnosis for several weeks in the initial stages of the EVD crisis in the capital of Sierra Leone. Furthermore, the NICD set out to establish local capacity amongst Sierra Leonean nationals in all aspects of the FEDL functions from the outset. This led to the successful hand-over of the FEDL to the Sierra Leone Ministry of Health and Sanitation in March 2015. Between 25 August 2014 and 22 June 2016, the laboratory tested 11,250 specimens mostly from the Western Urban and Western Rural regions of Sierra Leone, of which 2,379 (21.14%) tested positive for Ebola virus RNA. CONCLUSIONS:The bio-safety standards and the portability of the SA FEDL, offered a cost-effective and practical alternative for the rapid deployment of a field-operated high biocontainment facility. The SA FEDL teams demonstrated that it is highly beneficial to train the national staff in the course of formidable disease outbreak and accomplished their full integration into all operational and diagnostic aspects of the laboratory. This initiative contributed to the international efforts in bringing the EVD outbreak under control in Sierra Leone, as well as capacitating local African scientists and technologists to respond to diagnostic needs that might be required in future outbreaks of highly contagious pathogens.
| S-EPMC5491317 | biostudies-literature
Project description:The current outbreak of Ebola Virus Disease in Upper West Africa is the largest ever recorded. Molecular evidence suggests spread has been almost exclusively through human-to-human contact. Social factors are thus clearly important to understand the epidemic and ways in which it might be stopped, but these factors have so far been little analyzed. The present paper focuses on Sierra Leone, and provides cross sectional data on the least understood part of the epidemic-the largely undocumented spread of Ebola in rural areas. Various forms of social networking in rural communities and their relevance for understanding pathways of transmission are described. Particular attention is paid to the relationship between marriage, funerals and land tenure. Funerals are known to be a high-risk factor for infection. It is suggested that more than a shift in awareness of risks will be needed to change local patterns of behavior, especially in regard to funerals, since these are central to the consolidation of community ties. A concluding discussion relates the information presented to plans for halting the disease. Local consultation and access are seen as major challenges to be addressed.
| S-EPMC4401769 | biostudies-literature
Project description:IntroductionThe scale and geographical distribution of the current outbreak in West Africa raised doubts as to the effectiveness of established methods of control. Ebola Virus Disease (EVD) was first detected in Sierra Leone in May 2014 in Kailahun district. Despite high case numbers elsewhere in the country, transmission was eliminated in the district by December 2014. We describe interventions underpinning successful EVD control in Kailahun and implications for EVD control in other areas.MethodsInternal service data and published reports from response agencies were analysed to describe the structure and type of response activities, EVD case numbers and epidemic characteristics. This included daily national situation reports and District-level data and reports of the Sierra Leone Ministry of Health and Sanitation, and Médecins Sans Frontières (MSF) patient data and internal epidemiological reports. We used EVD case definitions provided by the World Health Organisation over the course of the outbreak. Characteristics assessed included level of response activities and epidemiological features such as reported exposure (funeral-related or not), time interval between onset of illness and admission to the EVD Management Centre (EMC), work-related exposures (health worker or not) and mortality. We compared these characteristics between two time periods--June to July (the early period of response), and August to December (when coverage and quality of response had improved). A stochastic model was used to predict case numbers per generation with different numbers of beds and a varying percentage of community cases detected.ResultsThere were 652 probable/confirmed EVD cases from June-December 2014 in Kailahun. An EMC providing patient care opened in June. By August 2014 an integrated detection, treatment, and prevention strategy was in place across the district catchment zone. From June-July to August-December 2014 surveillance and contact tracing staff increased from 1.0 to 8.8 per confirmed EVD case, EMC capacity increased from 32 to 100 beds, the number of burial teams doubled, and health promotion activities increased in coverage. These improvements in response were associated with the following changes between the same periods: the proportion of confirmed/probable cases admitted to the EMC increased from 35% to 83% (χ(2) p-value<0·001), the proportion of confirmed patients admitted to the EMC <3 days of symptom onset increased from 19% to 37% (χ(2) p-value <0·001), and reported funeral contact in those admitted decreased from 33% to 16% (χ(2) p-value <0·001). Mathematical modelling confirmed the importance of both patient management capacity and surveillance and contact tracing for EVD control.DiscussionOur findings demonstrate that control of EVD can be achieved using established interventions based on identification and appropriate management of those who are at risk of and develop EVD, including in the context of ongoing transmission in surrounding regions. Key attributes in achieving control were sufficient patient care capacity (including admission to specialist facilities of suspect and probable cases for assessment), integrated with adequate staffing and resourcing of community-based case detection and prevention activities. The response structure and coverage targets we present are of value in informing effective control in current and future EVD outbreaks.
| S-EPMC4784943 | biostudies-literature
Project description:BackgroundResearch on many routine nursing interventions requires data collection around the clock each day (24/7). Strategies for implementing and coordinating a study 24/7 are not discussed in the literature, and best practices are needed.ObjectiveTo identify strategies incorporated into implementing a nursing intervention trial 24/7, including key lessons learned.MethodsStrategies to facilitate implementation of a clinical trial of a nursing intervention with patients undergoing mechanical ventilation are shared. Challenges and changes for future studies also are discussed.ResultsAdequate planning, including a detailed operations manual, guides study implementation. Staffing is the most challenging and costly part of a study but is essential to a study's success. Other important strategies include communication among the study personnel and with collaborators and direct care staff. An electronic method of recording study-related data also is essential.ConclusionsA nursing clinical trial that requires interventions on a 24/7 basis can be done with thorough planning, staffing, and continuous quality improvement activities.
| S-EPMC6050978 | biostudies-literature
Project description:BACKGROUND: Ebola virus disease has taken a toll on more than 8,000 lives in West Africa in 2014. The most affected countries are Guinea, Liberia, and Sierra Leone. The number of people infected by Ebola in Sierra Leone surpassed that of Liberia in the last month in this year and almost half of human cases are distributed in this country. DISCUSSION: The ignorance on Ebola among people, including health workers at the early stage, plaid an important role in spread of Ebola virus disease. Subsequently, Ebola ravages urban settings for the first time and takes a huge toll on the lives. The government and international partners do make efforts to control the epidemic, however, lack of synergy make them lip service. SUMMARY: The leading role of government in the response to the epidemic should be emphasized. Basic information of Ebola should be quickly spread among communities by health education programme and social mobilization should be a basic measure for Ebola control.
| S-EPMC4328734 | biostudies-literature
Project description:BackgroundThe 2014-2016 West Africa Ebola epidemic highlighted the difficulty of collecting patient information during emergencies, especially in highly infectious environments. Health information systems (HISs) appropriate for such settings were lacking prior to this outbreak. Here we describe our development and implementation of paper and electronic HISs at the Sierra Leone Kerry Town Ebola treatment centre (ETC) from 2014 to 2015. We share our approach, experiences, and recommendations for future health emergencies.MethodsWe developed eight fact-finding questions about data-related needs, priorities, and restrictions at the ETC ("inputs") to inform eight structural decisions ("outputs") across six core HIS components. Semi-structured interviews about the "inputs" were then conducted with HIS stakeholders, chosen based on their teams' involvement in ETC HIS-related activities. Their responses were used to formulate the "output" results to guide the HIS design. We implemented the HIS using an Agile approach, monitored system usage, and developed a structured questionnaire on user experiences and opinions.ResultsSome key "input" responses were: 1) data needs for priorities (patient care, mandatory reporting); 2) challenges around infection control, limited equipment, and staff clinical/language proficiencies; 3) patient/clinical flows; and 4) weak points from staff turnover, infection control, and changing protocols. Key outputs included: 1) determining essential data, 2) data tool design decisions (e.g. large font sizes, checkboxes/buttons), 3) data communication methods (e.g. radio, "collective memory"), 4) error reduction methods (e.g. check digits, pre-written wristbands), and 5) data storage options (e.g. encrypted files, accessible folders). Implementation involved building data collection tools (e.g. 13 forms), preparing the systems (e.g. supplies), training staff, and maintenance (e.g. removing old forms). Most patients had basic (100%, n = 456/456), drug (96.9%, n = 442/456), and additional clinical/epidemiological (98.9%, n = 451/456) data stored. The questionnaire responses highlighted the importance of usability and simplicity in the HIS.ConclusionsHISs during emergencies are often ad-hoc and disjointed, but systematic design and implementation can lead to high-quality systems focused on efficiency and ease of use. Many of the processes used and lessons learned from our work are generalizable to other health emergencies. Improvements should be started now to have rapidly adaptable and deployable HISs ready for the next health emergency.
| S-EPMC6537453 | biostudies-literature